1. Arthropod communities in fungal fruitbodies are weakly structured by climate and biogeography across European beech forestsNicolas Friess, Jörg C. Müller, Pablo Aramendi, Claus Bässler, Martin P. Brändle, Christophe Bouget, Antoine Brin, Heinz Bussler, Kostadin B. Georgiev, Radosław Gil, Martin M. Gossner, Jacob Heilmann-Clausen, Gunnar Isacsson, Anton Krištín, Thibault Lachat, Laurent Larrieu, Elodie Magnanou, Alexander Maringer, Ulrich Mergner, Martin Mikoláš, Lars Opgenoorth, Jürgen Schmidl, Miroslav Svoboda, Simon Thorn, Kris Vandekerkhove, Al Vrezec, Thomas Wagner, Maria-Barbara Winter, Livia Zapponi, Roland Brandl, Sebastian Seibold, 2019, izvirni znanstveni članek Povzetek: Aim
The tinder fungus Fomes fomentarius is a pivotal wood decomposer in European beech Fagus sylvatica forests. The fungus, however, has regionally declined due to centuries of logging. To unravel biogeographical drivers of arthropod communities associated with this fungus, we investigated how space, climate and habitat amount structure alpha and beta diversity of arthropod communities in fruitbodies of F. fomentarius.
Location
Temperate zone of Europe.
Taxon
Arthropods.
Methods
We reared arthropods from fruitbodies sampled from 61 sites throughout the range of European beech and identified 13 orders taxonomically or by metabarcoding. We estimated the total number of species occurring in fruitbodies of F. fomentarius in European beech forests using the Chao2 estimator and determined the relative importance of space, climate and habitat amount by hierarchical partitioning for alpha diversity and generalized dissimilarity models for beta diversity. A subset of fungi samples was sequenced for identification of the fungus’ genetic structure.
Results
The total number of arthropod species occurring in fruitbodies of F. fomentarius across European beech forests was estimated to be 600. Alpha diversity increased with increasing fruitbody biomass; it decreased with increasing longitude, temperature and latitude. Beta diversity was mainly composed by turnover. Patterns of beta diversity were only weakly linked to space and the overall explanatory power was low. We could distinguish two genotypes of F. fomentarius, which showed no spatial structuring.
Main conclusion
Fomes fomentarius hosts a large number of arthropods in European beech forests. The low biogeographical and climatic structure of the communities suggests that fruitbodies represent a habitat that offers similar conditions across large gradients of climate and space, but are characterized by high local variability in community composition and colonized by species with high dispersal ability. For European beech forests, retention of trees with F. fomentarius and promoting its recolonization where it had declined seems a promising conservation strategy.
Ključne besede: dead wood, insects, invertebrates, restoration, saproxylic, sporocarp
Objavljeno v DiRROS: 23.07.2024; Ogledov: 287; Prenosov: 73
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2. Patterns of tree microhabitats across a gradient of managed to old-growth conditions : a case study from beech dominated forests of South-Eastern SloveniaKristina Sever, Thomas Andrew Nagel, 2019, izvirni znanstveni članek Povzetek: An inventory of tree microhabitats was done in two unmanaged forests (Kobile and Ravna gora forest reserves) and one managed beech forest in SE Slovenia. The purpose of this study was to determine the influence of forest management, natural disturbances, and tree characteristics on microhabitat patterns. Forest structure and microhabitats were recorded in systematically placed plots (500 m2 in size) across each area. In total, we inventoried 849 trees on 54 plots and 1833 tree microhabitats. The results showed that forest management had no significant influence on the abundance of microhabitats per tree, but there were differences regarding microhabitat type between managed and unmanaged sites. There were substantially more microhabitats related to standing dead and live habitat trees in unmanaged forest (e.g. woodpecker cavities, insect galleries and bore holes, branch holes, dead branches and fruiting bodies of fungi), whereas in managed forests there were more tree microhabitats related to management (e.g. exposed heartwood, coarse bark, and epiphytic plants). The results also indicate that disturbance, tree diameter, vitality, and species influence the density, diversity, and occurrence of tree microhabitats.
Ključne besede: forest management, biodiversity, tree microhabitats, beech forests, old-growth, veteran tree, natural disturbance, dead wood
Objavljeno v DiRROS: 08.07.2019; Ogledov: 7284; Prenosov: 3121
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3. Vascular plants on beech dead wood in two Slowenian forest reservesLado Kutnar, Péter Ódor, Klaas van Dort, 2002, izvirni znanstveni članek Ključne besede: Kočevska, Slovenia, dead wood, coarse woody debris, beech, undergrowth, diversity, virgin forest remnant
Objavljeno v DiRROS: 12.07.2017; Ogledov: 4855; Prenosov: 2041
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4. Beech dead wood inhabiting bryophyte vegetation in two Slowenian forest reservesPéter Ódor, Klaas van Dort, 2002, izvirni znanstveni članek Ključne besede: Kočevska, Slovenia, dead wood, coarse woody debris, beech, undergrowth, diversity, virgin forest remnant
Objavljeno v DiRROS: 12.07.2017; Ogledov: 5001; Prenosov: 2101
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